* bug#25043: mount is unable to locate mount helpers
@ 2016-11-27 14:18 Tomáš Čech
2016-11-29 11:16 ` John Darrington
0 siblings, 1 reply; 3+ messages in thread
From: Tomáš Čech @ 2016-11-27 14:18 UTC (permalink / raw)
To: 25043
mount command from util-linux is expecting helpers in /sbin/
directory, which is not available on GuixSD.
If found it when I tried to mount manully NFS:
# mount -t nfs server:/some/path /mnt
Manual page of `mount' - section EXTERNAL HELPERS and strace seems to agree:
...
stat("/sbin/mount.nfs", 0x7ffe421e9080) = -1 ENOENT (No such file or directory)
stat("/sbin/fs.d/mount.nfs", 0x7ffe421e9080) = -1 ENOENT (No such file or directory)
stat("/sbin/fs/mount.nfs", 0x7ffe421e9080) = -1 ENOENT (No such file or directory)
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=17, ...}) = 0
lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDWR|O_CREAT|O_CLOEXEC, 0644) = 3
close(3) = 0
mount("disk:/", "/mnt", "nfs", MS_MGC_VAL, NULL) = -1 EINVAL (Invalid argument)
write(2, "mount: ", 7mount: ) = 7
write(2, "wrong fs type, bad option, bad s"..., 110wrong fs type, bad option, bad superblock on disk:/,
missing codepage or helper program, or other error) = 110
write(2, "\n", 1
) = 1
write(2, " (for several filesystems "..., 108 (for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
) = 108
write(2, "\n In some cases useful inf"..., 86
In some cases useful info is found in syslog - try
dmesg | tail or so.
) = 86
close(1) = 0
close(2) = 0
exit_group(32) = ?
+++ exited with 32 +++
The best approach to me seems to patch mount so it search PATH or
introduce some other environment variable to search helpers in.
^ permalink raw reply [flat|nested] 3+ messages in thread* bug#25043: mount is unable to locate mount helpers
2016-11-27 14:18 bug#25043: mount is unable to locate mount helpers Tomáš Čech
@ 2016-11-29 11:16 ` John Darrington
2017-01-23 22:12 ` Ludovic Courtès
0 siblings, 1 reply; 3+ messages in thread
From: John Darrington @ 2016-11-29 11:16 UTC (permalink / raw)
To: Tom???? ??ech; +Cc: 25043
[-- Attachment #1: Type: text/plain, Size: 2874 bytes --]
This was recently fixed in the core-updates branch.
J'
On Sun, Nov 27, 2016 at 03:18:41PM +0100, Tom???? ??ech wrote:
mount command from util-linux is expecting helpers in /sbin/
directory, which is not available on GuixSD.
If found it when I tried to mount manully NFS:
# mount -t nfs server:/some/path /mnt
Manual page of `mount' - section EXTERNAL HELPERS and strace seems to agree:
...
stat("/sbin/mount.nfs", 0x7ffe421e9080) = -1 ENOENT (No such file or directory)
stat("/sbin/fs.d/mount.nfs", 0x7ffe421e9080) = -1 ENOENT (No such file or directory)
stat("/sbin/fs/mount.nfs", 0x7ffe421e9080) = -1 ENOENT (No such file or directory)
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=17, ...}) = 0
lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDWR|O_CREAT|O_CLOEXEC, 0644) = 3
close(3) = 0
mount("disk:/", "/mnt", "nfs", MS_MGC_VAL, NULL) = -1 EINVAL (Invalid argument)
write(2, "mount: ", 7mount: ) = 7
write(2, "wrong fs type, bad option, bad s"..., 110wrong fs type, bad option, bad superblock on disk:/,
missing codepage or helper program, or other error) = 110
write(2, "\n", 1
) = 1
write(2, " (for several filesystems "..., 108 (for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
) = 108
write(2, "\n In some cases useful inf"..., 86
In some cases useful info is found in syslog - try
dmesg | tail or so.
) = 86
close(1) = 0
close(2) = 0
exit_group(32) = ?
+++ exited with 32 +++
The best approach to me seems to patch mount so it search PATH or
introduce some other environment variable to search helpers in.
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-11-27 14:18 bug#25043: mount is unable to locate mount helpers Tomáš Čech
2016-11-29 11:16 ` John Darrington
2017-01-23 22:12 ` Ludovic Courtès
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